Elemonsters Timeline
Timeline
From the metals of antiquity to the superheavy elements made in particle accelerators. Scroll through the discoveries in chronological order. NOTE: The figures for antiquity are only rough estimates. There are no verified records of exactly when the ancient elements were discovered.
Antiquityup to year 0
- 2 elements — discovered in the same year
Modern agefrom year 0
- 2 elements — discovered in the same year
- 2 elements — discovered in the same year
- 2 elements — discovered in the same year
- 2 elements — discovered in the same year
19th century1800–1899
- 5 elements — discovered in the same year
45 · RhRhodiumtransition metalsDiscovered by: William Hyde Wollaston
46 · PdPalladiumtransition metalsDiscovered by: William Hyde Wollaston
58 · CeCeriumlanthanidesDiscovered by: Jöns Jakob Berzelius, Wilhelm von Hisinger
76 · OsOsmiumtransition metalsDiscovered by: Smithson Tennant
77 · IrIridiumtransition metalsDiscovered by: Smithson Tennant
- 2 elements — discovered in the same year
- 4 elements — discovered in the same year
- 2 elements — discovered in the same year
- 2 elements — discovered in the same year
- 2 elements — discovered in the same year
- 2 elements — discovered in the same year
- 5 elements — discovered in the same year
10 · NeNeonnoble gasesDiscovered by: William Ramsay, Morris William Travers
36 · KrKryptonnoble gasesDiscovered by: William Ramsay, Morris William Travers
54 · XeXenonnoble gasesDiscovered by: William Ramsay, Morris William Travers
84 · PoPoloniumMain-group metalsDiscovered by: Marie Curie, Pierre Curie
88 · RaRadiumalkaline earth metalsDiscovered by: Marie Curie, Pierre Curie
20th century1900–1999
- 2 elements — discovered in the same year
- 2 elements — discovered in the same year
- 2 elements — discovered in the same year
21st century2000 onwards
- 3 elements — discovered in the same year












































































































